2016 Gen4 clunking rear suspension NOT what you think!

Discussion in 'Gen 4 Prius Care, Maintenance and Troubleshooting' started by Gary Boates, Jan 15, 2020.

  1. Gary Boates

    Gary Boates Junior Member

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    So... reacting to the Tech Service Bulletin regarding rear shocks needing top nuts tightened or replaced, I purchased two brand new nuts and with a copy of the TSB in hand showed up at my local Toyota dealer asking that the shocks have the service as outlined in the bulletin provided. 1:5 hrs. of service later and $200 poorer I was dismayed to feel the ride was tighter but the noise, the clunking over bumps, was worse. I took it to another garage where two techs spent 20 minutes analyzing the problem and then gave a diagnosis: Bad shock drivers side. Two of the worlds most expensive shock absorbers were airlifted to the garage and the next day surgery was scheduled for 2pm (1400hrs). At 4pm their top mechanic said I put your original shock back on as there was nothing wrong with it, and I found the problem. The rear brake calliper bolts had loosened and one bolt had fallen completely out, I replaced both bolts and noise is gone.
    Needless to say I was shocked!
     
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  2. dig4dirt

    dig4dirt MoonGlow

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    arg! o_O

    how many miles?
     
  3. fotomoto

    fotomoto Senior Member

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    Thanks for the intel. How many KM on yours? Do you use the e-brake a lot? Just wondering if it was that caliper.
     
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  4. underdog

    underdog Junior Member

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    what was the mileage?
     
  5. Gary Boates

    Gary Boates Junior Member

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    52,000 miles so past the warranty for the nut tightening work.
     
  6. Gary Boates

    Gary Boates Junior Member

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    yes I do use the e-brake. And I had the emergency brake recall work performed for free. Is the emerg brake only on the rear drivers side? could the dealer have screwed it up while performing that task??
     
  7. CooCooCaChoo

    CooCooCaChoo Active Member

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    They charged you do perform a TSB recall? Those aren't free in Canada?
     
  8. kithmo

    kithmo Couch Potato

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    IIRC the brake recall doesn't involve any dismantling or removal of the calipers.
     
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